N. E, Stevens — Petrified Palms. 



43' 



larger, sometimes as much as 16 m in diameter, are septate, 

 and have taken on a dark color. From fii>\ 9 it is evident 



Fig. 8. — P. clieyennense, double bundle. X 45. 



Fig. 9. — Fungus hypha in P. clieyennense. the livpha apparently penetrates 

 to, but not into, the bast cells. X 80. 



that these larger hypliae grow for considerable distances 

 within the parenchymatous cells of the fundamental 



